Hey Skinny. I had my surgery on the 30th of August. I had to do 2 weeks before of Optifast which is a Protein drink, and was aloud Water 60 oz and that was it.
Now that I had the surgery I am still on liquids. Protein shakes which I can't stand. Try and obtain 50-60 grams of protein from just them. I also can have diet Jello, and chicken broth. I am almost a total of 4 weeks like this, and it is definitely getting the best of me.
I just tried a little sugar free applesauce which was okay with the stomach and from what I have been reading a lot of people 2 weeks out have started to add some ricotta cheese or yogurt. High protein, low fat no carb.
You mention carbs. It is going to be a while before your stomach will be able to handle the straight carb like rice and such. It has to be the hardest thing, but we do can do it.
Good luck with your surgery. I am 2 weeks out tomorrow and 16 pounds down..
M..